A late Early Pleistocene pollen record from Fontana Ranuccio (central Italy)

2011 ◽  
Vol 26 (3) ◽  
pp. 335-344 ◽  
Author(s):  
Paolo Corrado ◽  
Donatella Magri
Keyword(s):  
Central Italy ◽  
Early Pleistocene ◽  
Pollen Record

Palaeoenvironmental and climatic inferences from the late early Pleistocene lacustrine deposits in the eastern Tiberino Basin (central Italy)

2018 ◽  
Vol 90 (1) ◽  
pp. 201-221 ◽  
Author(s):  
Roberto Bizzarri ◽  
Paolo Corrado ◽  
Donatella Magri ◽  
Edoardo Martinetto ◽  
Daniela Esu ◽  
...  
Keyword(s):  
Central Italy ◽  
Early Pleistocene ◽  
Interglacial Period ◽  
Pollen Record ◽  
Southern Europe ◽  
Climate Conditions ◽  
Lacustrine Deposits ◽  
Matuyama Chron ◽  
Chemical Composition Of Water ◽  
Definition Of

AbstractWithin the Neogene-Quaternary evolution of the Mediterranean intermountain basins, the eastern Tiberino Basin provides new multifaceted chronological, biostratigraphic, palaeoecological, and palaeoenvironmental information, appreciably improving the knowledge of palaeoenvironmental and climate conditions during the middle-late Matuyama Chron (late early Pleistocene). Shallow to relatively deep lacustrine deposits and alluvial plain deposits, magnetostratigraphically calibrated, hold malacofaunas, ostracofaunas, and carpological remains, as well as a pollen record. Palaeocarpological remains widely originated from the local (azonal) vegetation of waterlogged environments. Nonetheless, some taxa show transitional morphology between possibly extinct Pliocene-Pleistocene forms and living taxa. The pollen record highlights a conifer-dominated forest phase, indicating a temperate-wet interglacial period, well aligned inside the schemes for the same latitudinal band. The abundance of tree taxa currently absent from the Italian peninsula points to pre-Jaramillo late early Pleistocene biostratigraphical characters, here compared to other sections from central Italy, and contributes to a better definition of modes and timing of their disappearance in southern Europe. Malacofaunas and ostracods, still with late early Pleistocene features, together with Charophyte, mark repeated fluctuations in energy, temperature, and chemical composition of water. The overall record identifies an incipient diachronous cooling trend, for the first time recognized in southern Europe.

Sedimentology, faunal content and pollen record of Middle Pleistocene palustrine and lagoonal sediments from the Peri-Adriatic basin, Abruzzi, eastern central Italy

2016 ◽  
Vol 86 (3) ◽  
pp. 359-372 ◽  
Author(s):  
Pierluigi Pieruccini ◽  
Claudio Di Celma ◽  
Federico Di Rita ◽  
Donatella Magri ◽  
Giorgio Carnevale ◽  
...  
Keyword(s):  
Shallow Water ◽  
Sea Level ◽  
Central Italy ◽  
Freshwater Wetlands ◽  
Middle Pleistocene ◽  
Pollen Record ◽  
Vegetation Development ◽  
Oxygen Isotope Stage ◽  
Open Forest ◽  
Facies Succession

AbstractA 25 m-thick outcrop section exposed at Torre Mucchia, on the sea-cliff north of Ortona, eastern central Italy, comprises a rare Middle Pleistocene succession of shallow-water and paralic sediments along the western Adriatic Sea. An integrated study of the section, including facies and microfacies analyses, and characterization of paleobiological associations (mollusks, fishes, ostracods, foraminifers and pollen), enable a detailed reconstruction of the paleoenvironmental and paleoclimatic conditions during deposition. The shallow-water deposits include a transgressive, deepening- and fining-upward shoreface to offshore-transition facies succession overlain by a regressive shoreface-foreshore sandstone body with an erosive base and a rooted and pedogenically altered horizon at the top that imply deposition during sea-level fall. This forced regressive unit is overlain by paralic strata forming a transgressive succession comprising palustrine carbonates and back-barrier lagoonal mudstones. The palustrine carbonates exhibit some of the typical features encountered in palustrine limestones deposited within seasonal freshwater wetlands (marl prairies). Following the sea-level rising trend, the freshwater marshes were abruptly replaced by a barrier-lagoon system that allowed deposition of the overlying mud-rich unit. Within these deposits, the faunal assemblages are consistent with a low-energy brackish environment characterized by a relatively high degree of confinement. The pollen record documents the development of open forest vegetation dominated by Pinus and accompanied by a number of mesophilous and thermophilous tree taxa, whose composition supports a tentative correlation with Marine Oxygen Isotope Stage 17. The new pollen record from Torre Mucchia improves our understanding of the vegetation development in the Italian Peninsula during the Middle Pleistocene and sheds new light on the role played by the most marked glacial periods in determining the history of tree taxa.

scholarly journals Evidence of Predation on Early Pleistocene Freshwater Ostracods (Umbria, Central Italy)

Geosciences ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 416
Author(s):  
Angela Baldanza ◽  
Roberto Bizzarri ◽  
Francesco Posati ◽  
Manuel Ravoni
Keyword(s):  
Central Italy ◽  
Early Pleistocene ◽  
Time Interval ◽  
Short Time Interval ◽  
Silty Clay ◽  
Plant Remains ◽  
Confined Environment ◽  
Short Time ◽  
Lake Deposits ◽  
Freshwater Ostracods

Although drillholes in modern and ancient ostracods are known, the record is relatively scarce when compared to other taxa, and mainly exist with reference to the marine environment. Moreover, less is known about perforated ostracods, and more generally, about bioerosion in freshwater environments. Traces of predation on freshwater ostracods are reported for the first time in deep-lake deposits belonging to the early Pleistocene Fosso Bianco Unit, and outcropping in the Cava Nuova section (Umbria, central Italy). Deposits are mainly clay to silty clay and sand; the fossil record is sparse, and is mainly comprised of very rare gastropods and bivalves, ostracods and plant remains (leaves, seeds and wood’s fragments). The association of ostracods consists of Candona (Neglecandona) neglecta, Caspiocypris basilicii, Caspiocypris tiberina, Caspiocypris perusia, Caspiocypris tuderis, Caspiocypris posteroacuta, and Cyprideis torosa. The Caspiocypris group, considered to be endemic to the grey clays of the Fosso Bianco Unit, present the majority of specimens affected by predation, with a prevalence of predated female valves and a comparable number of right and left predated valves, while only a few of Candona(N.) neglecta (adult and juvenile) valves are perforated. Traces of predation for nourishment, represented by microborings of different types, were abscribed to the ichnospecies Oichnus paraboloides Bromley 1981, Oichnus simplex Bromley 1981, Oichnus gradatus Nielsen and Nielsen 2001, Oichnus ovalis Bromley 1993, and Dipatulichnus rotundus Nielsen and Nielsen 2001. Microboring affected both adult and juvenile specimens, evidencing prey–predator coexistence in the same environment over a long period of time. This report makes a fundamental contribution to the knowledge of predation in this peculiar confined environment, also suggesting prey–predator relations over a relatively short time interval (80–160 ka).

scholarly journals Petrochirus sp. (Anomura, Paguroidea, Diogenidae) from the early Pleistocene of the Podere dell’Infrascato, Volterra (Pisa, Tuscany, central Italy)

2016 ◽  
Vol 3 (1) ◽  
pp. 66
Author(s):  
Giovanni Pasini ◽  
Alessandro Garassino
Keyword(s):  
Central Italy ◽  
Mediterranean Area ◽  
Early Pleistocene ◽  
Genus Distribution

We report <em>Petrochirus</em> sp. (Diogenidae Ortmann, 1892) from the early Pleistocene of the Podere dell’Infrascato, Volterra (Pisa, Tuscany, central Italy). The record of <em>Petrochirus</em> sp. in this peculiar environment (upper bathyal zone) is significant due to the scarce knowledge about the genus distribution in the paleo-Mediterranean area.

scholarly journals Suidae Transition at the Miocene-Pliocene Boundary: a Reassessment of the Taxonomy and Chronology of Propotamochoerus provincialis

2020 ◽  
Author(s):  
Alessio Iannucci ◽  
Marco Cherin ◽  
Leonardo Sorbelli ◽  
Raffaele Sardella
Keyword(s):  
Late Miocene ◽  
Central Italy ◽  
Early Pleistocene ◽  
Messinian Salinity Crisis ◽  
Compelling Evidence ◽  
Large Mammals ◽  
Faunal Assemblages ◽  
Paleoenvironmental Changes ◽  
Species Diagnosis ◽  
Eurasian Species

Abstract The Miocene-Pliocene (Turolian-Ruscinian) transition represents a fundamental interval in the evolution of Euro-Mediterranean paleocommunities. In fact, the paleoenvironmental changes connected with the end of the Messinian salinity crisis are reflected by a major renewal in mammal faunal assemblages. An important bioevent among terrestrial large mammals is the dispersal of the genus Sus, which replaced all other suid species during the Pliocene. Despite its possible paleoecological and biochronological relevance, correlations based on this bioevent are undermined by the supposed persistence of the late surviving late Miocene Propotamochoerus provincialis. However, a recent revision of the type material of this species revealed an admixture with remains of Sus strozzii, an early Pleistocene (Middle Villafranchian to Epivillafranchian) suid, questioning both the diagnosis and chronological range of P. provincialis. Here we review the late Miocene Suidae sample recovered from the Casino Basin (Tuscany, central Italy), whose taxonomic attribution has been controversial over the nearly 150 years since its discovery. Following a comparison with other Miocene, Pliocene, and Pleistocene Eurasian species, the Casino Suidae are assigned to P. provincialis and the species diagnosis is emended. Moreover, it is recognized that all the late Miocene (Turolian) European Propotamochoerus material belongs to P. provincialis and that there is no compelling evidence of the occurrence of this species beyond the Turolian-Ruscinian transition (MN13-MN14).

Early pleistocene palynostratigraphy of fornace tini, Valle Ricca (Central Italy)

1983 ◽  
Vol 41 (1-2) ◽  
pp. 153-164 ◽  
Author(s):  
Brigitte Urban ◽  
Claudio Arias ◽  
Giulio Bigazzi ◽  
Francescopaolo Bonadonna
Keyword(s):  
Central Italy ◽  
Early Pleistocene

A late Early Pleistocene tephrochronological and pollen record from Auckland, New Zealand

2005 ◽  
Vol 247 (1) ◽  
pp. 183-208 ◽  
Author(s):  
M. L. Byrami ◽  
R. M. Newnham ◽  
B. V. Alloway ◽  
B. Pillans ◽  
J. Ogden ◽  
...  
Keyword(s):  
New Zealand ◽  
Early Pleistocene ◽  
Pollen Record
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